Show Leaderboard(Invalid Expression) Does anything wrong?

Smite

I created a leaderboard on iTunesConnect.
I use "Show Leaderboard" behavior on the button press.
But when I preview the scene and press the button.
it show "blah blah blah , but this is when the Leaderboard (Invalid Expression) would appear"

why after the Leaderboard , show "(Invalid Expression)"?????

Is that anything wrong , or it's fine?

I'm sure I fill correct Leaderboard ID , what's wrong about that?

(Sorry for my bad English.)

The_Gamesalad_Guru

Don't open the expression editor just type in the field. Delete the current behavior and bring in a new one.

Smite

thank you so much
Its works now